
We are seeking extremely smart & independent senior developers who are gung ho about building large scale systems that are going to have a big impact on millions of customers. You will:
Responsibilities:
- Lead design and development of products working closely with business team.
- Independently own software components and co-own entire applications with a small group of fellow developers.
- Formally mentor junior software engineers on the team, reviewing design documents, (peer) reviewing code, providing design direction and guidance.
- Build performant, scalable, yet secure, enterprise ready back end architectures that can support millions of users in parallel.
- Establish strong engineering best practices and champion their adoption.
Requirements:
- 4+ years' experience in software product development and delivery.
- Bachelors or Masters degree in engineering (preferably computer science or sister branches) from a reputed institute (preferably IITs, NITs, or other top engineering institutes).
- Strong grasp of CS fundamentals, algorithms and excellent problem-solving abilities.
- All experience should be from good product development or e-commerce background.
- Able to take ownership of working with at least one of mobile or web app teams for complete integration with backend.
- Must have shown good stability in all your previous associations.
- Have strong backend knowledge and cloud development exposure.
- Proficiency in Java, Spring boot, Hibernate, REST API development.
- Worked with at least 1 RDBMS (Mysql preferred).
- NoSql is a plus.
- Have used or are very hands-on with Microservices, Docker, Kubernetes, Gradle/Ant, Kafka, GIT/bitbucket in a very agile work place.
- Writing high quality code which is made better by unit tests and integration tests is how you work.
- Comfortable with exploring proven open source tech stack like Grafana, Kibana, Jira, Prometheus, caches like Redis/Memcached, task queues like celery, to name a few.
- Knowledge of test driven development and AWS tech stack will be a good plus.

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Job Description
We are looking for a hands-on Tech Lead – Java with strong software engineering fundamentals, a deep understanding of Java-based backend systems, and proven experience leading agile teams. This role involves a balance of individual contribution and technical leadership — mentoring developers, designing scalable architectures, and driving the success of product delivery in fast-paced environments.
Key Responsibilities
- Lead the end-to-end design, development, and deployment of Java-based applications and RESTful APIs.
- Collaborate with product managers and architects to define technical solutions and translate business requirements into scalable software.
- Guide and mentor team members in best coding practices, design patterns, and architectural decisions.
- Drive code reviews, technical discussions, and ensure high code quality and performance standards.
- Troubleshoot critical production issues and implement long-term fixes and improvements.
- Advocate for continuous improvement in tools, processes, and systems across the engineering team.
- Stay up to date with modern technologies and recommend their adoption where appropriate.
Required Skills
- 5+ years of experience in Java backend development with expertise in Spring/Spring Boot and RESTful services.
- Solid grasp of Object-Oriented Programming (OOP), system design, and design patterns.
- Proven experience leading a team of engineers or taking ownership of modules/projects.
- Experience with AWS Cloud services (EC2, Lambda, S3, etc.) is a strong advantage.
- Familiarity with Agile/Scrum methodologies and working in cross-functional teams.
- Excellent problem-solving, debugging, and analytical skills.
- Strong communication and leadership skills.
About HummingWave
HummingWave is a leading IT product development company specializing in building full-scale application systems with robust cloud backends, sleek mobile/web frontends, and seamless enterprise integrations. With 50+ digital products delivered across domains for clients in the US, Europe, and Asia-Pacific, we are a team of highly skilled engineers committed to technical excellence and innovation.
Thanks
Required Skills and Qualifications:
- Bachelor’s degree (preferably in Computer Science/Electronics) or MCA
- Ideally 4-10 years experience in Backend development, using Java, Spring, Springboot,
- Experience in handling a team
- Willingness to be available outside of normal office hours.
- Demonstrating ability to work with a solution mindset approach.
- Shows the ability to prioritize, taking into consideration various alternate perspectives.
Role Responsibilities:
- Coding in Java, J2EE, Spring, Hibernate, JSON
- Documentation related to R&D activities (like Design Docs, Test Specs, Review Docs etc.)
- Unit Testing (for own code and for Function testing)
- Knowledge of Java, J2EE, Spring, Hibernate, JSON
- Basic practical experience in a J2EE framework (Springs & Hibernate)
- RDBMS Knowledge (Oracle database)
- Experience in application development on Windows and UNIX platform
- Good Analytical Skills and team player
- Basic knowledge of the software version control (Subversion / Git)
- Experience with JSON / REST/ SOAP web services.
- Development experience using Eclipse, Git, Maven, Junit
- Knowledge of UML
- Should have an aptitude to learn new technologies and function-domain.
Responsibilities
- Design, develop, test, and deploy Java-based backend services and APIs.
- Collaborate with front-end developers, DevOps, and QA to deliver high-quality software.
- Write clean, efficient, and maintainable code following best practices.
- Participate in system design, code reviews, and architectural discussions.
- Optimize application performance and scalability.
- Ensure secure and compliant backend services.
- Troubleshoot and debug production issues as part of the on-call rotation.
- Contribute to CI/CD and infrastructure automation efforts.
- 3+ years of experience in the Development in JAVA technology.
- AWS or cloud Experience
- Strong Java Basics
- SpringBoot or Spring MVC
- Hands on experience on Relationl Databases (SQL query or Hibernate) + Mongo (JSON parsing)
- Proficient in REST API development
- Messaging Queue (RabitMQ or Kafka)
- Microservices
- Any Caching Mechanism
- Good at problem-solving
Good to Have Skills:
- 3+ years of experience in using Java/J2EE tech stacks
- Good understanding of data structures and algorithms.
- Excellent analytical and problem solving skills.
- Ability to work in a fast paced internet start-up environment.
- Experience in technical mentorship/coaching is highly desirable.
- Understanding of AI/ML algorithms is a plus.
Egen is a data engineering and cloud modernization firm helping industry-leading companies achieve digital breakthroughs and deliver for the future, today. We are catalysts for change who create digital breakthroughs at warp speed. Our team of cloud and data engineering experts are trusted by top clients in pursuit of the extraordinary. An Inc. 5000 Fastest Growing Company 7 times, and recently recognized on the Crain’s Chicago Business Fast 50 list, Egen has also been recognized as a great place to work 3 times.
You will join a team of insatiably curious data engineers, software architects, and product experts who never settle for "good enough". Our Java Platform team's tech stack is based on Java8 (Spring Boot) and RESTful web services. We typically build and deploy applications as cloud-native Kubernetes microservices and integrate with scalable technologies such as Kafka in Docker container environments. Our developers work in an agile process to efficiently deliver high value data driven applications and product packages.
Required Experience:
- Minimum of Bachelor’s Degree or its equivalent in Computer Science, Computer Information Systems, Information Technology and Management, Electrical Engineering or a related field.
- Have experience working and strong understanding of object-oriented programing and cloud technologies
- End to end experience delivering production ready code with Java8, Spring Boot, Spring Data, and API libraries
- Strong experience with unit and integration testing of the Spring Boot APIs.
- Strong understanding and production experience of RESTful API's and microservice architecture.
- Strong understanding of SQL databases and NoSQL databases and experience with writing abstraction layers to communicate with the databases.
Nice to have's (but not required):
- Exposure to Kotlin or other JVM programming languages
- Strong understanding and production experience working with Docker container environments
- Strong understanding and production experience working with Kafka
- Cloud Environments: AWS, GCP or Azure
● Proficiency in RESTful API, microservices architecture and containerization technologies
(Docker)
● Strong programming, problem solving skills, data structures and algorithms.
● Solid foundation in Computer Science, distributed systems and web technologies.
● Proficient in one or more Java based backend programming frameworks - Ex - Java spring,
Java spring boot, Java vert.x
● Knowledge of one or more SQL (mySQL, postgres) and noSQL data stores (mongDB or
Cassandra)
● Knowledge of observability systems
● Knowledge of managed cloud services like AWS / Azure / GCP
● Experience with distributed messaging technologies like RabbitMQ, Google PubSub etc.
We are looking for a motivated and talented individual with extensive experience in developing software. You will take an experienced and influential role in contributing to designing, developing and delivering various applications and features to meet performance, scalability and feature requirements in support of the management of unmanned retailing kiosks.
If you want your software to have a long-lasting impact on the business software space, you should consider joining our expanding and exciting organization.
Requirements:
- J2EE - Sprint Boot Microservices
- 2+ years of experience in Java, Spring and Spring boot development (J2EE, J2SE 8)
- Degree, diploma or Certificate in Computer Science or IT.
- Extensive experience with Spring, Spring Boot Micro Services, JPA, Hibernate
- Understanding of Spring Boot 2.x , Microservices and higher with the ability to create an initial project with the correct starter modules.
- Extensive experience in REST and SOAP Webservices Services • Excellent knowledge of databases( PostgreSQL, My SQL)
- Experience in testing tools (JUnit, SOAP UI, Postman)
- Experience in building tools – Maven, Gradle
- Knowledge of modern authorization mechanisms, such as JSON Web Token
- Experience in web application servers - Tomcat etc
- Understanding of Agile Development methodology – SCRUM
- Understanding of continuous integration - Jenkins and Code versioning tools - Git

Job Description:
- Code and test programming for software and mobile apps.
- Develop and deploy computer applications.
- Execute code builds to test and production environments.
- Fix bugs in existing code.
- Collaborate with product, design, and marketing teams.
- Creating top-quality applications.
- Collaborating with front-end developers.
- Ensuring that junior staff delivers according to standards.
- Improving functionality.
- Using the most updated and appropriate technologies.
- Designing and building application layers.
Sills required:
.Net, Java & SQL Database
As one of the senior members of the backend development team at Mosaic, you will be
responsible for architecting and setting the standards for building our core backend/microservices.
Also, you will be responsible for shaping up the entire system for scale and collaborating
extensively with the frontend and design teams to create the best consumer experiences.
Responsibilities
● Develop microservices that will be used by the frontend through API endpoints.
● Translate business requirements into high quality code.
● Ensure that the code is deployed in a secure and scalable fashion.
● Focus on code maintainability and performance of application.
● Provide technical advice and assists in solving programming problems.
● Enhance Analytics and overall backend architecture for better performance.
Requirements
● 3+ years of backend/full-stack development experience
● 1+ years of experience on NodeJS
● 1+ years experience in building APIs in a microservice architecture
● Has experience managing other developers, recruiting and training.
● Experience in PHP is a plus
● Experience with AWS services such as Lambda, CloudWatch, CloudFront
● Has experience in code reviewing/being the gatekeeper for an entire project
● Experience with RabbitMQ or similar queuing system
● Experience with Redis/ElasticSearch is a plus
● Familiarity with CI/CD pipeline tools like Jenkins
● Good knowledge of working with Git
● A knack for benchmarking and optimization

Biddano is seeking for an analytical, result driven, multi-skilled candidate for design for the position of Backend Developer. He/She will be responsible for programming languages and tools to analyze current codes and industry developments, formulate more efficient processes, solve problems and create a more seamless experience for users.
The ideal candidate will have strong personal accountability for results, strong commitment to teamwork in support of the company's success, adherence to ethical business practices, and comfort operating in a start-up environment with an ability to prioritize and drive actions to closure.
a start-up environment with an ability to prioritize and drive actions to closure.
Backend Developer
Responsibilities:
- Participate in the entire application lifecycle, focusing on coding and debugging
- Write clean code to develop functional REST APIs Using Django/Python or NodeJs
- Troubleshoot and debug applications
- Perform unit test cases to optimize performance
- Manage cutting-edge technologies to improve legacy applications
- Collaborate with Front-end developers to integrate user-facing elements with server side logic
- Gather and address technical and design requirements
- Provide training and support to internal teams
- Build reusable code and libraries for future use
- Liaise with developers, designers and system administrators to identify new features
- Follow emerging technologies
Skills Required:
- Proven work experience as a Back-end developer
- In-depth understanding of the entire web development process (design, development and deployment)
- Hands on experience with programming languages like Python (Required), typescript(Required), Java.
- Working knowledge of CMS framework
- Familiarity with back-end languages (e.g. HTML, JavaScript and CSS)
- Excellent analytical and time management skills
- Backend:
- Django/DjangoREST, Python (Prefered) or NodeJs.
- Good experience of microservices.
- Hosting and Deployment Solutions:
- Good understanding of AWS which includes(All required):
- Good expertise in Linux.
- EC2 instance management.
- Scalability (Horizontal or Vertical) which includes autoscaling.
- Proper use of S3 for static file management.
- SNS or AWS email service.
- AWS resource cost optimization.
- Proper knowledge of Load Balancers.
- Teamwork skills with a problem-solving attitude
Experience :
- Minimum 4-7 years of experience as a Backend Developer
- B.tech Computer Science, Engineering or similar relevant field

